Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we epitomize a commitment to unparalleled excellence, transforming our craftsmanship into an exquisite art form. Our relentless pursuit of perfection propels us to excel in the meticulous art of precision engineering and the groundbreaking science of manufacturing innovation. Our unrivaled expertise shines brightly as a beacon in the esteemed realm of high-end component manufacturing, guiding the industry with unmatched precision. Pioneering the forefront of innovation, we set the benchmark in designing and engineering cutting-edge intelligent automation equipment. Our advanced solutions seamlessly integrate across a diverse spectrum of industries, adeptly meeting a multitude of needs with precision applications, such as:
- Medical and Biotech: Crafting precisely engineered, highly accurate components and pioneering solutions designed to shape the future landscape of medical technology.
- Semiconductors: Enhancing chip production and essential related equipment through indispensable, core components of superior quality.
- New Energy: A pivotal contributor to the sustainable evolution of cutting-edge energy equipment.
- Automotive: Supplying vital components that drive innovation within the automotive sector, fostering the growth of intelligent and electric vehicles.
Main Products
- Precision-engineered non-standard customized components, expertly crafted to serve key sectors, including medical, automation, semiconductor, and automotive industries, with unparalleled excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operational strength is fortified by an impressive ensemble of over 300 state-of-the-art machinery units, each a testament to cutting-edge innovation. This elite fleet empowers us to lead with a dynamic and expansive catalog of equipment categories, setting a new standard in industrial adaptability and pioneering advancement across a myriad of industrial landscapes. These top-tier branded machinery units represent the foundation of our precision-driven manufacturing prowess. Our expansive capabilities empower us to address the complex and demanding machining requirements of various industries with unparalleled precision and efficiency. We adhere strictly to the highest quality standards, offering bespoke customization that meticulously meets the unique needs of our esteemed clientele, consistently elevating their expectations with every endeavor.
- With an illustrious legacy spanning 20 years, we possess a rich reservoir of manufacturing experience, intricately woven with profound technical expertise and robust process strengths. This strategic synthesis ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise consistently enables us to produce extraordinary products that not only meet but exceed expectations, setting unprecedented benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Comprehensive and Thorough Incoming Material Inspection: Exceeding Industry Standards
In our state-of-the-art warehouse, each raw material undergoes a comprehensive evaluation that sets new standards for quality assurance. Our meticulous process involves an in-depth analysis of chemical compositions accompanied by a thorough examination of physical attributes. We adhere to the highest standards, requiring each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only premium materials are selected for our precision-oriented medical machining services. This rigorous verification process guarantees the integrity and purity of materials, consistently aligning with our elevated standards of quality and precision.
Meticulous In-Process Quality Control: Achieving Flawlessness
Throughout the intricate machining process, every component is meticulously inspected to ensure its dimensions and tolerances align with our rigorous specifications. Our diligent inspection protocol proactively identifies potential defects, preventing non-conforming parts from advancing. This vigilant strategy significantly diminishes the risk of substandard goods, ensuring superior quality is diligently upheld at every critical phase of production.
Proactive and Thorough First Article Inspection (FAI): Ensuring Excellence from the Start
Our First Article Inspection (FAI) process forms the cornerstone of our quality strategy, adeptly identifying and addressing potential production challenges right from the outset. This proactive approach ensures that issues are contained before escalating to mass production, thereby securing a seamless flow of flawless production. Our extensive FAI process is vital for minimizing quality risks, ensuring our products consistently meet the highest standards, underscoring our unwavering commitment to excellence throughout the production lifecycle.
Comprehensive and Detailed Final Inspection: The Ultimate Quality Assurance
Prior to departing our facilities, every product undergoes a comprehensive and meticulous final inspection. This thorough evaluation encompasses dimensions, visual appearance, performance, and any specific customer requirements. Our exhaustive inspection process stands as a testament to our unwavering dedication to quality, ensuring that every dispatched part meets our stringent standards, thereby delivering only the finest quality products to our esteemed clientele.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. Over the past two decades, through an unwavering commitment to innovation and excellence, we have emerged as trailblazers in precision engineering. Through relentless technical research and innovative solutions, we have established ourselves as industry pioneers, setting benchmarks of unparalleled excellence. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction solidifies our position as the top choice within the medical sector, where our precision and reliability are esteemed and indispensable by healthcare professionals and industry experts alike.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and challenging machining tasks, cementing our prestigious reputation for excellence and innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)